Madbean Bloviator
Madbean simplification of Bajaman’s “Sonic Stump”. As you can see, you’ll need at least 1590B to box this. If you want the same circuit in a smaller A-box, you should check out Madbean’s PCBs.
EQ
Madbean Spackler
Another discontinued Madbean PCB, this time for his modded Demeter Fat Control. Info about the project: The Spackler is a modified version of the Demeter® Fat Control™. The effect is a midrange boost that will push the front end of an amplifier while boosting the lower-mid frequency range resulting in what some might call added … Read more
2, 4 & 8 Band Gyrator EQ
Moving on from the HM2 which obviously has quite a powerful EQ, I thought I could use the circuit to make a handy standalone EQ. I was going to just use a quad opamp and make this 2 band with 2 of the channels being used as the input buffer and output gain stage, but … Read more
Tronographic Rusty Box
After a request John K has said that he’s happy to have his layouts posted on the main site so there will be a few of these showing up over the next few days. All layouts posted are verified by John and others in many cases so you can definitely build with confidence. Starting with … Read more
EWS Bass Mid Control
Originally in a 1590A size box, this may be a struggle to get in although I’m sure Javi will find a way :o) The original used a dual concentric pot for the Boost/Cut and Frequency controls, but I think they are almost certainly going to be special order as one side is 50K reverse log … Read more
BMP Tonestack w/ LPB1
I’ve noticed a recurring request on how to add tone control to layout x (where x = any layout without tone control). So i thought that i’d draw up a simple addon board for simple Big Muff Pi tone control, so that anyone can take it after any board’s output. But as many of the … Read more
Dan Armstrong Purple Peaker
Another addition to Dan Armstrong library, The Purple Peaker treble booster. This layout is using two SPDT switches instead of the original setup. You could get closer to the original with using 2PDT, taking the ground to pins 2 & 5, Lo wire to pins 1 & 3, and finally Hi to pin 5 – … Read more
Dan Armstrong Yellow Humper
Adding to Dan Armstrong library, The Yellow Humper bass booster. This layout is using two SPDT switches instead of the original setup. You could get closer to the original with using 2-pole On-Off-On switch, taking the ground to pins 2 & 5, Lo wire to pins 1 & 3, and finally Hi to pin 6 … Read more
Runoffgroove Tonemender
From ROG:The Tonemender is a very flexible, yet simple clean boost with a 3-knob tonestack that allows the user to re-create the classic Fender, Marshall and Vox responses. We suggest using a TLC2272 for the dual op-amp. The TLC2272 is rated for low-noise and rail-to-rail output, which will offer the highest possible clean boost and … Read more